Polyurethane Coatings

Polyurethane conformal coatings are renowned for their flexibility, insulating properties, hardness, and exceptional chemical resistance. Designed to shield electronic components from the corrosive effects of chemical agents, oil, moisture and static discharges, these coatings are a reliable choice across a wide range industries.

Conro is committed to providing you with the finest polyurethane conformal coatings, ensuring your electronic components are shielded with precision and reliability. Our selection includes single and two-component formulas, offering flexibility in application and catering to a variety of needs. All of our products are sourced from premium manufacturers such as Humiseal and Henkel Loctite and tested to the highest industry standards.

Conro is an authorized distributor for Humiseal and Henkel.

Key Advantages of Polyurethane Coatings:

Our range of polyurethane conformal coatings provides a robust solution for safeguarding electronic components against environmental factors, offering the following key benefits:

Outstanding protection: Polyurethane coatings offer exceptional protection against moisture, chemicals, and dust, shielding electronic components from the harsh effects of the environment.
Ease of application: The user-friendly application process ensures a smooth coating, conforming to complex shapes and contours of electronic assemblies. Application methods include dipping, spraying, and brushing.
Flexibility and durability: These coatings provide a flexible and durable barrier, accommodating the natural expansion and contraction of electronic components due to temperature variations, ensuring long-lasting performance.
Excellent dielectric properties: With superior dielectric properties, polyurethane conformal coatings prevent electrical leakage, enhancing the insulation of delicate electronic components.
Fluorescent: Polyurethane conformal coatings can be optically excited under UV-light, fluorescing for straightforward inspection.

Disadvantages of Polyurethane Coatings:

It's essential to acknowledge some considerations in choosing polyurethane coatings:

Hard to remove: Due to the coating’s high resistance to solvents, polyurethane coating removal can be challenging, risking damage to electronic parts or compromising visual appeal.
Long curing times: Polyurethane coatings might have a longer curing time compared to some other coatings, influencing production timelines. Accelerated curing requires additional equipment.
Thicker coatings: Polyurethane coatings may require a thicker layer to achieve the same level of protection as other coatings, potentially impacting the overall size of the electronic assembly.

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